be.ugent.caagt.swirl
Class SelectOnFocusGained

java.lang.Object
  java.awt.event.FocusAdapter
      be.ugent.caagt.swirl.SelectOnFocusGained

All Implemented Interfaces:

java.awt.event.FocusListener, java.util.EventListener

public class SelectOnFocusGained
extends java.awt.event.FocusAdapter

Focus listener which automatically selects the contents of a text component when it gains focus. This is a singleton class without a public constructor. The shared singleton instance of this class should be used through the class method register(javax.swing.text.JTextComponent).

As an example, the following code creates a text field textField and ensures that the contents of the field will be selected automatically whenever we enter the field (e.g., by tabbing to it or by moving the focus to it programmatically).

    JTextField textField = new JTextField (10);
    SelectOnFocusGained.register (textField);
 

Method Summary

void	focusGained(java.awt.event.FocusEvent e)
static void	register(javax.swing.text.JTextComponent component) Registers a shared focus listener of this type with the given component.
static void	unregister(javax.swing.text.JTextComponent component) Unregisters the shared focus listener with the given component.

Methods inherited from class java.awt.event.FocusAdapter

focusLost

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

register

public static void register(javax.swing.text.JTextComponent component)

Registers a shared focus listener of this type with the given component. The effect is that the the contents of the component will be selected automatically whenever the field gains the focus.

unregister

public static void unregister(javax.swing.text.JTextComponent component)

Unregisters the shared focus listener with the given component.

focusGained

public void focusGained(java.awt.event.FocusEvent e)

Specified by:

focusGained in interface java.awt.event.FocusListener

Overrides:

focusGained in class java.awt.event.FocusAdapter